Who became land owners in exchange for services in the feudal system?

A.

fiefs

B.

serfs

C.

vassals

D.

knights

C, Vassal; It is not B because a fief is just the piece of land granted, while the vassal is the land owner.

The correct answer is:

Vassals became land owners in exchange for services in the feudal system.

Step-by-step explanation: Vassals in the Middle Ages were an integral part of Feudalism; which was a system of the government throughout Europe in the Middle Ages. Vassal in the Feudal society are the one invested with a fief in return for services to an overload, which included homage, fealty and military services equivalent to that of a lord. They are also referred as Feudal Tenants.